ANTLIA 2.5nm ULTRA NARROWBAND 2" SET Ha + OIII + SII BA20 The focuser comes with pre-installed

The focuser comes with pre-installed motor that can be controlled with the EFA hand control or PWI PC software

GIOTTO 285 smart flat field generator

the azimuth and altitude axis can be fine adjusted for a precise polar alignment

Orion and other Newtonians and Dobsonian telescopes with secondary mirrors glued to holders in form of a stalk of almost the diamater of the secondary

Click here for instructions on how to install the ESATTO to refractor telescopes

ANTLIA 2.5nm ULTRA NARROWBAND 2" SET Ha + OIII + SII BA20 The focuser comes with pre-installedThe Antlia 2. 5nm Ultra narrowband 2" filters have a FWHM (full width half maximum) of an incredible 2. 5nm +0. 3 0. 1nm and a high transmission efficiency of > 92 95% at the central wavelength. These filters are made from quartz glass which has an ultra low thermal expansion coefficient and outstanding thermal and mechanical properties. Utilizing Antlia's precisely controlled advanced coating process, these filters are exceptionally durable and can